Fix for thisArg in Backbone lodash monkeypatch

It turns out that thisArg was not taken into account when applying the
lodash functions which resulted in wrong 'this' argument in the inner function
of such calls:

nodes.filter(function(node) { ... }, this);

Related-Bug: #1281076
Change-Id: I85b57bab488072b3e1d1f3990fcb231e77cf4645
Merge "Fix for thisArg in Backbone lodash monkeypatch"